Keys exhausted on Humble Bundle; I claimed it but there are no keys available.

I'm just starting and found it extremely difficult to complete level 4 and 5 of Greendale the maps are completely different from anyone elses I've seen so far. For instance my Level 5 Greendale has the no use of bridges challenge and everything I've seen thats been level 4 greendale and on top of that the map is completely different....

It's just connecting stations, it's way too simplistic.

Whenever I open this game, it shows the initial credits and loading screen for about 4 minutes, and then the game just closes. What's going on? By the way, this happened on a Lenovo Ideapad 1i

The demo has an unusually high demand for graphics card performance. I only play in 1080p with a GTX 1070 and yet the fans on my card howl loudly in this demo and I have around 30-40 FPS in the game! So there is undoubtedly need for optimization!